<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" :model="filters">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="menus" highlight-current-row v-loading="listLoading" @selection-change="selsChange"
              style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="菜单管理" width="120">
      </el-table-column>
      <el-table-column label="上级菜单" width="120">
        <template scope="scope">
          <span v-if="scope.row.parent" style="color: green">{{ scope.row.parent.name }}</span>
          <span v-else style="color: grey">无上级菜单</span>
        </template>
      </el-table-column>
      <el-table-column prop="url" label="访问URL" width="120">
      </el-table-column>
      <el-table-column prop="component" label="组件路径" width="120">
      </el-table-column>
      <el-table-column prop="icon" label="图标" width="120">
      </el-table-column>
      <el-table-column prop="intro" label="简介" width="120">
      </el-table-column>


      <el-table-column prop="state" label="状态" width="100">
        <template scope="scope">
          <span style="color: #008000" v-if="scope.row.state==true">启用</span>
          <span style="color: #ff0000" v-else>禁用</span>
        </template>
      </el-table-column>

      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :page-size="pageSize"
                     :current-page="currentPage"
                     :total="totals"
                     style="float:right;">
      </el-pagination>
    </el-col>

    <!--编辑界面-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="访问URL" prop="url">
          <el-input v-model="saveForm.url" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="组件路径" prop="component">
          <el-input v-model="saveForm.component" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="图标" prop="icon">
          <el-input v-model="saveForm.icon" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="排序" prop="index">
          <el-input v-model="saveForm.index" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="简介" prop="intro">
          <el-input v-model="saveForm.intro" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="true">启用</el-radio>
            <el-radio class="radio" :label="false">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="上级菜单">
          <el-cascader v-model="saveForm.parentId"
                       :options="menuTree"
                       :props="{
            	checkStrictly: true,
                label: 'name', // 级联框显示那个属性的值
                value: 'id'    // 回显时需要,回传值的时候也需要
            }" clearable>
          </el-cascader>
          <!--</el-form-item>-->
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>


    </el-dialog>


  </section>
</template>

<script>

export default {
  data() {
    return {
      menus: [],
      currentPage: 1,/*当前页*/
      pageSize: 5,/*每页显示条数*/
      totals: 0, /*总条数*/

      //关键字查询
      keyword: '',
      //列表选中列
      sels: [],
      //菜单级联选择器
      menuTree: [],

      filters: {
        name: ''
      },

      total: 0,
      page: 1,
      listLoading: false,


      saveFormVisible: false,//编辑界面是否显示
      title: '',
      saveLoading: false,
      saveFormRules: {
        url: [
          {required: true, message: '请输入编号', trigger: 'blur'}
        ],
        name: [
          {required: true, message: '请输入姓名', trigger: 'blur'}
        ]
      },


      //编辑界面数据
      saveForm: {
        id: null,
        name: '',
        url: '',
        component: '',
        icon: '',
        index: '',
        intro: '',
        parentId: null,
        state: true
      },
    }
  },
  methods: {


    //1.获取菜单列表
    getMenus() {
      let para = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword
      };

      this.listLoading = true; //开启忙等框
      this.$http.post("/menu", para).then(res => {

        this.menus = res.data.data;
        this.totals = res.data.totals;
        this.listLoading = false; //关闭忙等框

      }).catch(res => {
        this.$message.error("系统繁忙，请稍后重试!!!")
      })
    },

    //高级查询
    keywordQuery() {
      this.currentPage = 1;
      this.getMenus();
    },


    //性别显示转换
    formatSex: function (row, column) {
      return row.sex == 1 ? '男' : row.sex == 0 ? '女' : '未知';
    },
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getMenus();
    },

    //删除
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        this.$http.delete("/menu/" + row.id).then(res => {
          if (res.data.success) {
            let totalPage = Math.ceil(this.totals / this.pageSize);
            //如果当前页是最后一页(总页数) 而且是最后一条数据，并且不是第一页就 让当前页等于当前页减1
            if (this.currentPage == totalPage && (this.totals - 1) % this.pageSize == 0 && this.currentPage != 1) {
              this.currentPage = this.currentPage - 1;
            }
            this.getMenus()
          } else {
            this.$massage.error("骚瑞，系统繁忙【500】")
          }
          this.listLoading = false;
        }).catch(res => {
          this.$massage.error("骚瑞，系统繁忙【400/404】")
        })
      }).catch(() => {

      });
    },


    selsChange: function (sels) {
      this.sels = sels;
    },
    //批量删除
    batchRemove: function () {
      var ids = this.sels.map(item => item.id);
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        this.$http.patch("/menu/", ids).then(res => {
          if (res.data.success) {
            this.currentPage = 1,
                this.getMenus()
          } else {
            this.$massage.error("骚瑞，系统繁忙【500】")
          }
          this.listLoading = false;
        }).catch(res => {
          this.$massage.error("骚瑞，系统繁忙【400/404】")
        })
      }).catch(() => {

      });
    },

    //显示编辑界面
    handleEdit: function (index, row) {
      this.title = '编辑';
      this.getMenuTree();
      this.saveFormVisible = true;
      this.saveForm = Object.assign({}, row);
    },

    //点击新增按钮弹出对话框
    handleAdd: function () {
      this.title = "新增";
      this.saveForm = {
        id: null,
        name: '',
        url: '',
        component: '',
        icon: '',
        intro: '',
        index: '',
        parentId: null,
        state: true,
      };
      this.getMenuTree();
      //弹出对话框
      this.saveFormVisible = true;
    },
    //添加编辑
    saveSubmit: function () {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;
            let result = this.saveForm.parentId;
            if (result == null || result.length == 0) {
              this.saveForm.parentId = null;
            }
            if (result.length) {
              this.saveForm.parentId = result[result.length - 1]
            } else {
              this.saveForm.parentId = result;
            }
            this.$http.put("/menu", this.saveForm).then(res => {
              if (res.data.success) {
                this.getMenus();
              } else {
                this.$msg.error("骚瑞，系统繁忙【500】")
                this.saveLoading = false;

              }
              this.saveLoading = false;
            }).catch(res => {
              this.$massage.error("骚瑞，系统繁忙【400/404】")
              this.saveLoading = false;
            })
          });
          this.saveFormVisible = false;
        }
      });
    },

    getMenuTree() {
      this.$http.get("/menu/menuTree").then(res => {
        this.menuTree = res.data;
      })
    }
  },

  mounted() {
    this.getMenus();
  }
}

</script>

<style scoped>

</style>